[go: up one dir, main page]

EP0805327A1 - Dispositif pour l'échappement des gaz d'un four électrique à arc et méthode d'utilisation - Google Patents

Dispositif pour l'échappement des gaz d'un four électrique à arc et méthode d'utilisation Download PDF

Info

Publication number
EP0805327A1
EP0805327A1 EP97106324A EP97106324A EP0805327A1 EP 0805327 A1 EP0805327 A1 EP 0805327A1 EP 97106324 A EP97106324 A EP 97106324A EP 97106324 A EP97106324 A EP 97106324A EP 0805327 A1 EP0805327 A1 EP 0805327A1
Authority
EP
European Patent Office
Prior art keywords
fumes
cupola
functioning
discharge pipe
exhaust device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP97106324A
Other languages
German (de)
English (en)
Other versions
EP0805327B1 (fr
Inventor
Milorad Pavlicevic
Peter Tishchenko
Alfredo Poloni
Angelico Della Negra
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Danieli and C Officine Meccaniche SpA
Original Assignee
Danieli and C Officine Meccaniche SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Danieli and C Officine Meccaniche SpA filed Critical Danieli and C Officine Meccaniche SpA
Publication of EP0805327A1 publication Critical patent/EP0805327A1/fr
Application granted granted Critical
Publication of EP0805327B1 publication Critical patent/EP0805327B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/30—Arrangements for extraction or collection of waste gases; Hoods therefor
    • F27D17/304—Arrangements for extraction or collection of waste gases; Hoods therefor specially adapted for electric arc furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces
    • F27B3/10—Details, accessories or equipment, e.g. dust-collectors, specially adapted for hearth-type furnaces
    • F27B3/24—Cooling arrangements

Definitions

  • This invention concerns an exhaust device for electric arc furnaces, and the relative method, as set forth in the respective main claims.
  • the exhaust device is applied advantageously in electric arc furnaces, whether they be fed in alternating or direct current, used in steel plants to melt metals, in cooperation with the conventional system for the forced intake of fumes.
  • the state of the art covers exhaust systems for the fumes which are normally used in electric arc furnaces, where intake means suck in the fumes from inside the furnace through a discharge conduit connected to a hole situated peripherally on the crown of the furnace and known as the "fourth hole".
  • a problem which is often found in such furnaces is the presence of apertures in the central part of the crown, which allow the electrodes to be inserted and moved. No matter how builders try to make the apertures mate as closely as possible to the configuration of the electrodes, it is very difficult to achieve an air tight fit and a part of the fumes tends to escape from the apertures in any case, carrying with them considerable quantities of slag and powders, which are not filtered.
  • FR-A-2488380 discloses a cover for the electric furnace which is higher than the furnace and covers the whole width of the furnace.
  • the fourth hole, through which the fumes are discharged, is at a tangent to the cover.
  • This necessary increase in the intake also involves an increase in the loss of heat and a reduction in the yield of the furnace.
  • GB-A-865936 teaches to include a cupola around the electrodes which rises above the cover.
  • the fourth hole for the extraction of the fumes starts from this cupola and, to be more precise, from its side.
  • This system gives a low level of filtering and a lack of uniformity in the removal of the fumes which, to be minimized, requires an increase in the intake and therefore a greater amount of cold air entering the furnace, with a consequent increase in the wear of the electrodes and a reduction in the yield of the furnace.
  • the purpose of this invention is to provide a device, and the relative method, to perform a localised intake of the fumes from an electric arc furnace which will substantially prevent the fumes from escaping from the apertures in the crown which are necessary for the electrodes to be inserted and moved.
  • a further purpose of the invention is to obtain a forced circulation of the fumes inside the furnace, particularly in the area of the intake, which will cause at least some of the slag and powders, carried suspended in the fumes, to be deposited by a process of decantation, and therefore the said fumes can be sent to the filters already partially cleaned.
  • Another purpose of the invention is to maintain unchanged the intake of the fumes in such a way that there is no negative effect on the wear of the electrodes nor on the yield of the furnace.
  • a further purpose of the invention to separate the streams of fumes as they leave the intake chamber of the furnace to obtain the desired effects of cleaning and filtering the fumes.
  • the crown of the furnace has at the upper part a cupola functioning as a decantation chamber advantageously but not exclusively cylindrical in shape, placed in a central and circumscribed position with respect to the electrodes.
  • the cupola functioning as a decantation chamber has a smaller diameter than the crown of the furnace and comprises, on its lateral surface and advantageously near the covering or top, an aperture connected by means of the appropriate pipe with the discharge conduit associated with the fourth hole of the furnace.
  • the discharge conduit associated with the fourth hole is arranged at the side of the decantation chamber and is connected downstream with the usual intake systems, treatment systems and with the discharge chimney.
  • the cupola functioning as a decantation chamber, two balanced streams of fumes are formed and leave the intake chamber of the furnace; these fumes advance at a reduced speed which thus assists the decantation and the filtering of the powders.
  • the first stream of fumes which leave the furnace surround the electrodes and then fill the cupola of the decantation chamber; a second stream is propogated from the fourth hole directly into the discharge conduit.
  • the pipe is orientated in such a way as to suck in the fumes tangentially from inside the cupola functioning as a decantation chamber, obliging them to follow a forced, spiral route before they escape.
  • This spiral route regularizes the turbulent movement of the fumes and allows the heavier particles of slag to decant and fall inside the furnace, thus reducing the quantity of slag suspended in the fumes.
  • the depression which is created inside the cupola functioning as a decantation chamber caused as the pipe which connects the cupola to the discharge pipe sucks in the fumes, prevents a large part of the fumes from escaping from the apertures situated in correspondence with the electrodes and from dispersing in the air without being filtered.
  • the reduced quantity of slag in the fumes moreover, causes the filters associated with the exhaust device to last longer, with a consequent reduction in costs.
  • the discharge conduit associated with the fourth hole of the furnace has a first cylindrical segment with the function of a secondary decantation chamber, and the cupola above the crown functions as a first decantation chamber.
  • This first, cylindrical segment of the discharge conduit has an aperture which communicates by means of the appropriate pipe with the peripheral aperture situated in the main decantation chamber.
  • the main and secondary decantation chambers are adjacent.
  • the tangential intake of the fumes from the main decantation chamber is achieved through a window which connects the two chambers directly, without necessitating a connecting pipe.
  • the reference number 10 in the attached figures generally denotes an exhaust device for fumes in an electric arc furnace 11.
  • the cupola functioning as a decantation chamber 13 rises vertically with respect to the crown 20, has a smaller diameter than that of the crown 20 and is placed, in this case, in a substantially coaxial position with respect to the crown 20.
  • the cupola functioning as a decantation chamber 13 moreover is arranged at the side of the discharge conduit 14 which connects the fourth hole of the furnace, that is the outlet hole for the fumes, to the intake systems, the treatment systems and the chimney, which are not shown here.
  • the cupola functioning as a decantation chamber 13 has, in this case, a height of between 400 and 800 mm and the side wall 17 is at a distance of between 800 and 1200 mm away from the electrodes 12.
  • a window 16a On the side wall 17, and in proximity of the top 18 of the cupola functioning as a decantation chamber 13, there is a window 16a, advantageously of a rectangular or elliptic shape, of a height between 100 and 150 mm and communicating with the discharge pipe 14 by means of a conduit 15.
  • the positioning of the window 16a near the top 18 of the cupola functioning as a decantation chamber 13 defines a large area through which the fumes coming from inside the furnace pass before they are removed from the cupola functioning as a decantation chamber 13.
  • the side wall 17 of the cupola functioning as a decantation chamber 13, the walls of the discharge pipe 14 and the walls of the conduit 15 which connects the cupola functioning as a decantation chamber 13 to the discharge pipe 14 are all, for at least part of their length, associated with cooling means which are not shown here.
  • These cooling means consist of pipes for the circulation of cooling water, configured as panels which substantially reproduce the inner geometry of the pipe or conduit into which they are inserted.
  • the fumes present in the cupola functioning as a decantation chamber 13 are sucked in through the conduit 15.
  • the conduit 15 is orientated tangentially with respect to the side wall 17 of the cupola functioning as a decantation chamber 13, so that the fumes which have been sucked in follow a forced, spiral route before they escape from the window 16a.
  • the window 16a can have a plurality of fins to induce the spiral route of the fumes.
  • the function of this route is to regularise the turbulent flow of the fumes inside the furnace 11 and inside its upper part, which allows a part of the suspended slag to decant and fall back inside the furnace 11 as a result of gravity. As part of the slag is thus deposited, the fumes sucked in and sent to the filters placed in proximity of the exhaust device are already partially cleaned, which extends the working life of the filters, not shown here.
  • a further advantage of the invention is that the intake of the fumes by the conduit 15 causes a depression inside the cupola functioning as a decantation chamber 13 which prevents the fumes from escaping from the aperture 19 which is situated in the top of the cupola functioning as a decantation chamber 13 through which the electrodes 12 are inserted. As a result, fumes which have not been filtered, and therefore are full of polluting slag, are not dispersed in the atmosphere.
  • a first segment 14a of the discharge pipe 14 functions as a secondary decantation chamber, itself serving as a deposit site for the suspended slag and powders.
  • the fumes are removed from the first segment 14a by means of an aperture 16b connected to a second segment 14b of the discharge pipe 14 orientated tangentially. This induces a spiral movement of the fumes as they rise in the discharge pipe 14, accentuating by decantation the process of separation of the slag suspended in the fumes and the at least partial filtration of the fumes.
  • the first segment 14a of the discharge pipe 14 is higher than the first decantation chamber 13 and communicates with the first decantation chamber 13 through the conduit 15 which is placed in an intermediate position of the first segment 14a.
  • the window 16a from which the fumes are sucked in from the first decantation chamber 13, is orientated substantially with the same orientation as the immission window of the fumes in the first segment 14a.
  • the orientation of the intake window 16a and the window in the first segment 14a are such that the fumes sucked in by the fourth hole are further assisted to follow a spiral route so that the fumes can be filtered, as the powders and slag decant.
  • the tangential orientation of the intake window 16a is coordinated with the tangential orientation of the second segment 14b with respect to the first segment 14a, so as to ensure the continuity of the spiral movement of the two streams of fumes, one leaving the fourth hole and the other leaving the first decantation chamber 13.
  • the vertical position of the discharge pipe 14b is higher than the upper part of the connection between the conduit 15 and the first segment 14a by at least 200 mm.
  • the discharge pipe 14b will have an orientation such as to cooperate with the action of the intake window 16a and the immission window in the first segment 14a in order to induce the fumes in the first segment 14a, or second decantation chamber, to rise in a spiral movement.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Discharge Heating (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Furnace Details (AREA)
  • Electrostatic Separation (AREA)
EP97106324A 1996-04-30 1997-04-17 Dispositif pour l'échappement des gaz d'un four électrique à arc et méthode d'utilisation Expired - Lifetime EP0805327B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITUD960066 1996-04-30
IT96UD000066A IT1288892B1 (it) 1996-04-30 1996-04-30 Dispositivo di aspirazione dei fumi per forno elettrico ad arco

Publications (2)

Publication Number Publication Date
EP0805327A1 true EP0805327A1 (fr) 1997-11-05
EP0805327B1 EP0805327B1 (fr) 2001-09-19

Family

ID=11422086

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97106324A Expired - Lifetime EP0805327B1 (fr) 1996-04-30 1997-04-17 Dispositif pour l'échappement des gaz d'un four électrique à arc et méthode d'utilisation

Country Status (10)

Country Link
US (1) US5787108A (fr)
EP (1) EP0805327B1 (fr)
KR (1) KR970070731A (fr)
AT (1) ATE205934T1 (fr)
AU (1) AU711667B2 (fr)
BR (1) BR9700633A (fr)
DE (1) DE69706752T2 (fr)
ES (1) ES2164953T3 (fr)
IT (1) IT1288892B1 (fr)
ZA (1) ZA973410B (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000043720A1 (fr) * 1999-01-20 2000-07-27 Danieli & C. Officine Meccaniche S.P.A. Systeme d'aspiration visant a reduire les pertes de matieres fines et de poudres dans un four a arc electrique
WO2000043719A1 (fr) * 1999-01-20 2000-07-27 Danieli & C. Officine Meccaniche S.P.A. Systeme d'obturation du delta de la voute d'un four a arc electrique
GB2356919A (en) * 1999-09-24 2001-06-06 Rhs Paneltech Ltd Metallurgical ladle or furnace roof
EP1302738A3 (fr) * 2001-10-12 2003-10-15 SMS Demag AG Four à arc avec un collecteur d'échappement
WO2009112137A1 (fr) * 2008-03-10 2009-09-17 Outotec Oyj Procédé métallurgique et installation pour celui-ci

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2754832B1 (fr) * 1996-10-23 1998-11-27 Pechiney Aluminium Procede de changement d'anodes usees de cuves d'electrolyse de l'aluminium et dispositif de captage des effluents gazeux permettant de le mettre en oeuvre
IT1304328B1 (it) * 1997-04-22 2001-03-15 Danieli Off Mecc Procedimento di trattamento fumi e relativo dispositivo
US6347292B1 (en) 1999-02-17 2002-02-12 Den-Con Electronics, Inc. Oilfield equipment identification method and apparatus
IT1315031B1 (it) * 2000-08-29 2003-01-27 Danieli Off Mecc Dispositivo di raffreddamento della volta per forni elettrici
KR101186198B1 (ko) 2007-08-13 2012-10-08 주식회사 포스코 전극봉 홀더 보호장치 및 이를 이용한 전기로
PE20161493A1 (es) * 2014-05-21 2017-01-08 Glencore Tech Pty Ltd Metodo y disposicion para impedir que el gas salga de una abertura de un recipiente

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB865936A (en) * 1958-12-19 1961-04-26 Pangborn Corp Movable furnace hood
DE1205232B (de) * 1960-02-17 1965-11-18 Von Roll Ag Vorrichtung zur Rauchgasabfuehrung an Elektrooefen
FR2488380A1 (fr) * 1980-06-19 1982-02-12 Outokumpu Oy Procede de melange des gaz chauds d'un four avec un autre gaz avant l'evacuation de ces gaz, et hotte destinee a la mise en oeuvre de ce procede
JPH06120661A (ja) * 1992-10-01 1994-04-28 Hitachi Chem Co Ltd 多層印刷配線板の製造方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3164658A (en) * 1962-08-20 1965-01-05 Yagi Rokuro Apparatus for use in intercepting leakage of fumes and dust from electricarc furnaces
US3555163A (en) * 1969-05-16 1971-01-12 United States Steel Corp Fume-exhaust hood for electric furnace
US3539692A (en) * 1969-06-24 1970-11-10 Fuller Co Furnace hood
US3999001A (en) * 1975-09-24 1976-12-21 Hawley Manufacturing Corporation Arc furnace fumes control system
NO154579C (no) * 1984-04-04 1986-10-29 Elkem As Fremgangsmaate for aa hindre beleggdannelse i gassuttak for varme, stoevholdige avgasser fra elektriske smelteovner.
JPS6120661A (ja) * 1984-07-09 1986-01-29 Daido Steel Co Ltd 精錬用取鍋の集塵装置
FR2688581B1 (fr) * 1992-03-16 1997-05-30 Unimetall Sa Procede et dispositif de regulation du debit d'air de combustion d'un dispositif de captage des fumees d'un reacteur metallurgique, dispositif de captage et reacteur metallurgique correspondants.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB865936A (en) * 1958-12-19 1961-04-26 Pangborn Corp Movable furnace hood
DE1205232B (de) * 1960-02-17 1965-11-18 Von Roll Ag Vorrichtung zur Rauchgasabfuehrung an Elektrooefen
FR2488380A1 (fr) * 1980-06-19 1982-02-12 Outokumpu Oy Procede de melange des gaz chauds d'un four avec un autre gaz avant l'evacuation de ces gaz, et hotte destinee a la mise en oeuvre de ce procede
JPH06120661A (ja) * 1992-10-01 1994-04-28 Hitachi Chem Co Ltd 多層印刷配線板の製造方法

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 10, no. 171 (M - 489)<2277> 17 June 1986 (1986-06-17) *
STAHL UND EISEN, vol. 81, no. 10, 11 May 1961 (1961-05-11), pages 686 - 687, XP002011202 *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000043720A1 (fr) * 1999-01-20 2000-07-27 Danieli & C. Officine Meccaniche S.P.A. Systeme d'aspiration visant a reduire les pertes de matieres fines et de poudres dans un four a arc electrique
WO2000043719A1 (fr) * 1999-01-20 2000-07-27 Danieli & C. Officine Meccaniche S.P.A. Systeme d'obturation du delta de la voute d'un four a arc electrique
US6175584B1 (en) 1999-01-20 2001-01-16 Danieli & C. Officine Meccaniche Spa Aspiration system to reduce the losses of fine materials and powders from an electric arc furnace
US6219371B1 (en) 1999-01-20 2001-04-17 Danieli & C. Officine Meccaniche Spa System to plug the delta area of the roof of an electric arc furnace
GB2356919A (en) * 1999-09-24 2001-06-06 Rhs Paneltech Ltd Metallurgical ladle or furnace roof
US6418157B1 (en) 1999-09-24 2002-07-09 Rhs Paneltech Limited Roof for a metallurgical ladle/furnace
GB2356919B (en) * 1999-09-24 2002-08-21 Rhs Paneltech Ltd A roof for a metallurgical ladle/furnace
EP1302738A3 (fr) * 2001-10-12 2003-10-15 SMS Demag AG Four à arc avec un collecteur d'échappement
WO2009112137A1 (fr) * 2008-03-10 2009-09-17 Outotec Oyj Procédé métallurgique et installation pour celui-ci
US8496728B2 (en) 2008-03-10 2013-07-30 Outotec Oyj Metallurgical process and plant therefor
AP3036A (en) * 2008-03-10 2014-11-30 Outotec Oyj Metallurgical process and plant herefor

Also Published As

Publication number Publication date
AU711667B2 (en) 1999-10-21
ITUD960066A0 (fr) 1996-04-30
ITUD960066A1 (it) 1997-10-30
AU1906397A (en) 1997-11-06
ES2164953T3 (es) 2002-03-01
BR9700633A (pt) 1998-09-29
DE69706752D1 (de) 2001-10-25
ATE205934T1 (de) 2001-10-15
EP0805327B1 (fr) 2001-09-19
IT1288892B1 (it) 1998-09-25
ZA973410B (en) 1997-11-20
US5787108A (en) 1998-07-28
KR970070731A (ko) 1997-11-07
DE69706752T2 (de) 2002-04-18
MX9703143A (es) 1998-06-30

Similar Documents

Publication Publication Date Title
EP0805327B1 (fr) Dispositif pour l&#39;échappement des gaz d&#39;un four électrique à arc et méthode d&#39;utilisation
EP0183402B1 (fr) Corps rotatif, appareil et procédé de traitement du métal en fusion
CA1217337A (fr) Surete sur couvercle de poche de coulee
EP0658216B1 (fr) Procede d&#39;enfournement de solides metalliques dans du metal fondu
US3632096A (en) Apparatus and process for deslagging steel
JP2504627B2 (ja) ガラス溶融炉の底部電極
CN214694320U (zh) 火法炼锑鼓风炉挥吹设备
PL79697B1 (en) Ventilation method and apparatus with dust collection by electric static precipitator[us3844205a]
MXPA97003143A (es) Dispositivo de escape para hornos de arcoelectrico y metodo relacionado
CA1169647A (fr) Methode et dispositif d&#39;extraction d&#39;une couche de liquide en surnage sur un bain
EP1147352B1 (fr) Systeme d&#39;aspiration visant a reduire les pertes de matieres fines et de poudres dans un four a arc electrique
EP3645181B1 (fr) Appareil de fusion pour la production d&#39;acier
CN1159561C (zh) 电弧炉冷却装置
JP4054865B2 (ja) 溶鋼環流式脱ガス設備構造
KR200265549Y1 (ko) 유도 덕트형 캐노피 후드
CN114713811B (zh) 一种铁合金浇铸烟尘回收装置及回收方法
KR100536527B1 (ko) 전로용 집진 후드
CN209512538U (zh) 一种耐热长寿命冶炼炉
RU2013110C1 (ru) Способ очистки воздушной среды от вредных примесей при производстве стали в электрической печи и устройство для его осуществления
CN106001428B (zh) 过滤网支撑座、浇注系统及浇注方法
CN217350961U (zh) 高炉用冷却壁工业冷却水与煤气分离装置
CN202543249U (zh) 一种改进的lf钢包精炼炉双层炉盖的下衬
CN210356378U (zh) 熔炼电炉用二次回收车间
SU998524A2 (ru) Главный желоб доменной печи
CN210346348U (zh) 硅锰炉出铁系统

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE DE ES FR GB IT SE

17P Request for examination filed

Effective date: 19980421

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 20001102

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE DE ES FR GB IT SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20010919

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20010919

REF Corresponds to:

Ref document number: 205934

Country of ref document: AT

Date of ref document: 20011015

Kind code of ref document: T

REF Corresponds to:

Ref document number: 69706752

Country of ref document: DE

Date of ref document: 20011025

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20011219

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2164953

Country of ref document: ES

Kind code of ref document: T3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020417

EN Fr: translation not filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20020417

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20080404

Year of fee payment: 12

Ref country code: DE

Payment date: 20080408

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20080325

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20080409

Year of fee payment: 12

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091103

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090417

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20090418

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090418

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090417